Java 中的 AtomicReferenceArray set()方法,示例
原文:https://www . geeksforgeeks . org/atomicreferencearray-set-method-in-Java-with-examples/
原子引用数组类的 set() 方法用于将索引 I 处的元素的值设置为新值。索引 I 和 newValue 都作为参数传递给该方法。这个方法用内存读取语义设置值,就像变量被声明为易失性类型的变量一样。
语法:
public final void set(int i, E newValue)
参数:该方法接受:
- i 是执行操作的原子引用数组的索引,
- 新值是要设置的新值。
返回值:此方法不返回任何内容。
下面的程序说明了 set()方法: 程序 1:
// Java program to demonstrate
// AtomicReferenceArray.set() method
import java.util.concurrent.atomic.*;
public class GFG {
public static void main(String[] args)
{
// create an atomic reference object.
AtomicReferenceArray<Integer> ref
= new AtomicReferenceArray<Integer>(5);
// set some value and print
ref.set(0, 2345);
ref.set(1, 543);
ref.set(2, 322);
System.out.println("Value of index 0 = "
+ ref.get(0));
System.out.println("Value of index 1 = "
+ ref.get(1));
System.out.println("Value of index 2 = "
+ ref.get(2));
}
}
Output:
Value of index 0 = 2345
Value of index 1 = 543
Value of index 2 = 322
程序 2:
// Java program to demonstrate
// AtomicReferenceArray.set() method
import java.util.concurrent.atomic.*;
public class GFG {
public static void main(String[] args)
{
// create an atomic reference object.c
AtomicReferenceArray<String> ref
= new AtomicReferenceArray<String>(5);
// set some value
ref.set(0, "C");
ref.set(1, "PYTHON");
ref.set(2, "TS");
ref.set(3, "C++");
ref.set(4, "C");
// print
for (int i = 0; i < 5; i++) {
System.out.println(ref.get(i));
}
}
}
Output:
C
PYTHON
TS
C++
C
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